• Environ. Health Perspect. · Nov 2009

    Multicenter Study

    Saliva cortisol and exposure to aircraft noise in six European countries.

    • Jenny Selander, Gösta Bluhm, Töres Theorell, Göran Pershagen, Wolfgang Babisch, Ingeburg Seiffert, Danny Houthuijs, Oscar Breugelmans, Federica Vigna-Taglianti, Maria Chiara Antoniotti, Emmanuel Velonakis, Elli Davou, Marie-Louise Dudley, Lars Järup, and HYENA Consortium.
    • Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden. jenny.selander@ki.se
    • Environ. Health Perspect. 2009 Nov 1;117(11):1713-7.

    BackgroundSeveral studies show an association between exposure to aircraft or road traffic noise and cardiovascular effects, which may be mediated by a noise-induced release of stress hormones.ObjectiveOur objective was to assess saliva cortisol concentration in relation to exposure to aircraft noise.MethodA multicenter cross-sectional study, HYENA (Hypertension and Exposure to Noise near Airports), comprising 4,861 persons was carried out in six European countries. In a subgroup of 439 study participants, selected to enhance the contrast in exposure to aircraft noise, saliva cortisol was assessed three times (morning, lunch, and evening) during 1 day.ResultsWe observed an elevation of 6.07 nmol/L [95% confidence interval (CI), 2.32-9.81 nmol/L] in morning saliva cortisol level in women exposed to aircraft noise at an average 24-hr sound level (L(Aeq,24h)) > 60 dB, compared with women exposed to L(Aeq,24h) < or = 50 dB, corresponding to an increase of 34%. Employment status appeared to modify the response. We found no association between noise exposure and saliva cortisol levels in men.ConclusionsOur results suggest that exposure to aircraft noise increases morning saliva cortisol levels in women, which could be of relevance for noise-related cardiovascular effects.

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